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DES1200 Radiography > TEST 1 > Flashcards

TEST 1 Flashcards

1
Q

What are the THREE states of MATTER and an example for each

A
  1. Solid-land
  2. Liquid-water
  3. Gas-air
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2
Q

4 Properties of GAS

A
  1. Flows freely
  2. Low density
  3. easy to compress
  4. NO surface
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3
Q

3 Properties of SOLID

A
  1. Medium to high density
  2. difficult to compress
  3. rigid surface
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4
Q

4 Properties of LIQUID

A
  1. Flows freely
  2. medium density
  3. difficult to compress
  4. has surface
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5
Q

Atom

A

The tiny fundamental particle or unit of matter

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6
Q

An atom further reduced into smaller particles?

A
  • protons
  • neutrons
  • electrons
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7
Q

What is the charge of a PROTON and where is it located?

A

POSITIVE (+) CHARGE

-located in the nucleus with neutrons

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8
Q

______ and ______ can be found in the nucleus of an atom.

A

PROTONS and NEUTRONS

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9
Q

What is the charge of a NEUTRON and where is it located?

A

NEUTRON (NO charge)

-located in the nucleus with protons

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10
Q

What is the charge of an ELECTRON and where is it located?

A

ELECTRON (-) charge

  • located in OUTER SHELL
  • can only be seven in outer shell
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11
Q

A max total of ____ electrons can be found in the outer shell of an atom.

A

7

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12
Q

For a neutral atom, the number of _____ equals the number of ______.

A

For a neutral atom, the number of PROTONS equals the number of ELECTRONS.

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13
Q

How many known elements are there?

A

105

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14
Q

How many elements are man made?

A

17

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15
Q

Element

A

Has same number of PROTONS

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16
Q

A substance that has the same number of PROTONS

A

Element

17
Q

The tiny fundamental particle or unit of matter

A

Atom

18
Q

Molecule

A

Two or more atoms joined by chemical bonds H2O

19
Q

Two or more atoms joined by chemical bonds H2O

A

Molecule

20
Q

Matter

A

Anything that occupies space and has mass

21
Q

Anything that occupies space and has mass

A

Matter

22
Q

Energy

A

Ability to do work and overcome resistance

23
Q

Ability to do work and overcome resistance

A

Energy

24
Q

Heat, light, electricity and radiation are all examples of what?

A

Energy

25
Q

When does the production of energy occur?

A

When matter is altered by natural or artificial means

26
Q

When matter is altered by natural or artificial means, what occurs?

A

The production of energy

DES1200 Radiography (3 decks)

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